Music-leaf turner



(No Model.)

C. L. SERVICE. MUSIC LEAF TURNR.

NO. 426.146. Patented Apr. 22,1890.

Q3Jnmmfor'. ,wz/wa,

wi [';1-855 es z M4, /Fym Ad/W:

PATENT OFFICE.

CHARLES L. SERVICE, OF ALBANY, NE\V YORK.

MUSlC-LEAF TU RNER.

SPECIFICATION forming part of Letter s 'Patent No. 426,146, dated April22, 1890.

i Application filed April 12, 1889. Serial No. 307,007. (No model.)

T0 all witam it may concern:

Be it known that I, CHARLES LAVONIA SER- VICE, a citizen of the UnitedStates, residing at Albany, in the county of Albany and State of NewYork, have invented a new and useful Music-Leaf Turner, of which thefollowing is a specification.

My invention relates to improvemcnts in music-leaf turners; and theobject of my in- Vention is to provide a music-leaf turner that may bereadily attached to a piano or other similar musical instrument, or toan Orchestra music-stand, and be operated by the performer quicklyeasily with a single inovement of the hand. I attain this obj ect by themechanism illustrated in the accompanying drawings, in whichd Figure 1shows the mechanism for operating my leaf-turner. Fig. 2 shows the arm Aand manner of attaching it to aleaf of music. Fig. 3 is a section alongline z' of Eig. l, and Fig. 4 shows the fiange M.

Similar letters refer to similar parts throughout the several views. i

To the under side of the ledge 0' of the music-rack R, I attach two ormore screws or bolts a (see Fig. 2) and secure to them the flange M ofthe bracket P. The lower edge of the bracketP is in contact with therack R. The flange M is provided With openings n, Eig. 4-, sufficientlylarge to allow the head of the bolt a to pass through it, and a slotcommunicating with said opening not large enough to allow the head ofthe bolt to pass through. By this arrangement the heads of the bolts aare placed through the openings 01,,Vand a lateral movement is given theflange, and the bolts enter the slots and hold the fiange seeurely inplace.

It is Very easy to attach my invention to a piano or music-rack and toremove it therefrom without injuring the finish of the pianoforte.

To the bracket P are attached the parallel projecting plates E E, oneabove the other. Between the plates E E are placed the ends of thefingers A A A, one above the other, movable in a horizontal plane aboutthe bolt g, passing through the plates E E and the ends of the saidfingers. To the bracket P, beneath the plates E E, is a project-mgguideplate 8, to which is secured the arm by means of a boli, allowingthe arm B to be moved freely in a horizontal plane about the said bolt.On the upper surface of the arm B is a stud Z), which moves with the armin contact with the guide-plate 8, and the guideplate being providedwith a stop s' the arm B is limited in its movement. The arm which isright-angular in form, has one end attached to the pivot or bolt passingthrough the guide-plate S and its other end pro jecting baokward throughan opening in the braeket P and provided with a spring-bar C, saidspring-bar having on its upper surface the catch or projection c. Thespring-bar O as thus arranged passes under the fingers A A A, and thecatch e engages with and passes against the rear side of the lowestfinger, coming in contact with each finger in turn as they are movedfrom one side to the other. The spring-bar C being semicircularin form,bowing upwardly, as one finger is moved from the right to the left thespring is relaxed and the catch comes into contact with the next iingeruntil they are all turned over. The arin B is attached to the bell-cranklever D by the slightly-curved link e. The bell-crank lever D is pivotedto the plate II, attached to the horizontal part of the bracliet P, andhas attached to it the coiled spring S at the end of the arm beneathwhich the lever L presses. The spring S is secured to the bracket l) andtends to hold depressed the arin of the lever D, to which it isattaehed, which in turn causes the spring C to be in position under thefingers A A, ready to turn them. The lever L is fulcrumed to aprojection K on the bracket P and presses against the under side of thearin (l of the lever I). Then the lever L is pressed downward, thebell-crank lever D forces the arm carrying the spring-bar C, forward,which, being in contact with the finger A, cause-s that finger torevolve about the pin o and occupy the position denoted by dotted lines,Fig. 1. Letting go of the lever L, the spring S acts upon thebell-cranlr. lever D, forces it back, and causes the spring-bar O toagain come into contact with the next finger A on the right of theplates E E.

The fingers A A are usually constructed of two )ieces--the one long, theother a short IOO piece-near the end attached to the music. (See Fig.2,) The two pieces are secured together by the pin o, about which thesmall piece can move slightly, being limited by the stud p in anelongated slot. This arrangement is found advisable, because the sheetof music when turned by a rigid finger bccomes bent and does not workeasily.

For fasi'ening the sheet of music to the finger, I usually use the claspN, which' consists of two pieces of metal secured to a pivotpin and heldtogether by a spring and separated by pressing together the proj ectingen ds v o below the pivot-pin, Fig. 2. I do not confine myself to theuse of this particular elasp.

To operate my device, place a piece of music against the rack, restingon the ledge r, the center of the sheet, Where the leaves are joinedtogether, being on a line with the bolt g. Attach the fingers to thelower edge of each leaf. Then When it is desired to turn the leaf pressdown on the lever L, which Will cause the finger to move the leaf fromthe right to the left, 'and letting go of the lever L the mechanisinwill place itself in position to turn the next leaf. lVhen desired, theleaves may be turned back from left to right with the hand and the pieceor parts of them repeatcd, and the mechanism Will turn them again whenrequired.

This machine is extreinely simple in its construction and operation, itis readily attached to an organ, piano, or music-stand, and performs itsfunctions quickly, satisfactorily, and in a positive manner.

That I claim as my invention, and desirc to secure by Letters Patent,is-

1. In a music-leaf turner, the combination of a series of iingers A,each provided at one end with a clasp, at the other end With a pivot,With the pivoted arm B, provided With a curved upwardly-projectingspring-bar O, having on the upper convex surface thereof a catch c, saidcatch coming into contact With each of the fingers A alternately,substantially as dcscribed.

2. In a music-leaf turner, a pivoted arm provided With a spring-barhaving' a catch thereon connected by a link to a bell-crank lever, saidleVer having an arm attached to a spring, said arm in contact with amoving lever, substantially as deseribed.

3. In a music-leaf turner, the combination of fingers provided at oneend with a clasp, at the other end with a pivot, with a pivoted armprovided with a spring-bar having a catch thereon, said catch cominginto contact with each finger in turn, said pivoted arm connected by alink to a bell-cran 1; lever, said lever having an arm attached to aspring, said arm in contact with a moving lever, all substantially asdescribed.

CHARLES L. SERVICE. lVitnesses:

T. L. CARROLL, IIOWARD PAD'DocK.

